Indicator.



A. B. HAZARD.

INDICATOR. APPLIOATION FILED JUNE 2z, 19114 1,093,621 Patented A111221, 1914 l I 2 SHEETSSHEET 1Y I m l g 111,1 Tulum l .QW1 m@%% Witnesses Z Atorneys of Illinois, have invented a new and usefulv ijrnn sfrarns ra'rnnr clarion antan .erinnnnnezann orcnroaoo, itmnols, assiettes or onnnatr ro niermann. nuivirsron, or cnrcneo, Immers.

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To all whom t may concern.'

Be kitlznown that l, ALLEN YB. HAZARD, a citizen of the- United States, residing' at lllhicago, in the county.` of Cook and State Indicator, of which the following is a. speci- .ication This invention relates to improvements in indicators, the primary object of the .invention being' the provision of an elec-4 trically operated means whereby the condition of certain mechanisms may be indicated, such for instance, as apparatus at distance points, such as oil switches, circuit- 1v breakers, mail boxes, and coin collectingmachinos; this particular' apparatus being rovided with meanswherebvwhen any o the above mentioned devices are operated that the indicator controlledthereloy, will properly indicate the exact condition of the apparatus to which it is connected.

A further object of the invention is the provision ot' armature and ltarget operahly connected therewith, combined with a magnet, whereby vthe target which in thisv case, is a segmental target 180o in length, so mounted that when indicating- 'one condition of the apparatus, 90 or one halt' of the target will bei exposed While the remaining 90o will be hidden, `and vice versa. Briefly stating, this invention comprises an armatureequipped with a commentator, having'I a 180O segment mounted so that onl one of a. pair oit' brushes makes Contact wit i' the segment at aA time, one end of the armature Winding being connected to the seg-p' nient while the otheris connected to a supporting frame. The brushes are connected to positive and negative terminals of twol ormore batteries as may be desired, and a frame connection. is made to the middle battery so that there will be as many batteries betweenit and the positive connection, as there are between it and the negative connection. By this means the battery current is sent through the armature from the frame connect-ion to the negative brush, the ar1nature,.providing same is in a position to make contact with negative brush, will then turn throughv an angle of 900, bringing that prt of the target before 1nvisible to View. Y,

The device is so ,constructed that when the armature has passed through an angle of aboutf'o, the contact between the brush Specification of Letters l'atent.y

, Application filed .lune 22, 1911. Serial No. 634,761.` i

and c-onnnutator is broken, stopping the iiow of battery current. Should the ,battery current be'sent through the armature from the positive brush' to the frame, the armature will turny through an angle of900' in the opposite direction breaking),l contact after having passed throughanangle of about 750 as above mentioned, this movement 4of the-armature carrying its target and expos-` ing `to View alternately the diiferent halves or 90?D portion of the target. l'V ith the foregoingv 'and other objects i view .which will appear as the` description proceeds, the invention resides in the combination. and arrangement of parts'and in the details of construction.hereinafter described and claimed, itbeing understood 'or the arrow as indicated. Fig. 3 is a top plan View or an indicator used inconnection with this circuit, the cover thereof being removed., Fig. L1 is a. section taken on the line llt- 4 o'lig. 3 with the cover shown in dotted lines.

Referringto the drawings, the numeral 1 designates the batteries, Which arearranged in series and are connected centrally,r of their ends .by a conductor 2,50 that a similar Vnumber of batteries will be upon each side of saidconnections. The conductor Eis connected toa frame, and to the coil 3, th`e wires 4; being connectedto a plate 5,-' to which the armature 6 is journaled, said armature being provided with the curved contact segment, 6, said segment being a 180 segment, the remaining portion of' said armature being composed of a 180 block of insulation 6". Adapted to contact the commutator are the two brushes 7 and 7, the brush 7 be'- ing the negative brush and the brush 7 being the positive brush, the said brushes being f Patented Apr. h2.1, 1914.

asI

connected respectively tb the posts 7 and 7", y

and leading from said posts are the conductors 8 and 8 respectively: The conduc- 9, while the conductor 8 isconnected -to a.

tor 8 is connected to a switch contactpoi'nt switch Contact point 9. .The double pivoted switch points 1 '0 and 10 respectively, are connectedto their Vrespective conductors 11 and 12,`the conductor7` 11 being connected .to .the left hand series' of batteries 1, while the conductor 12 is connected to the right hand series of batteries 1.

l is as -follows: There are a certain number ot lines ot" magnetic force extendingacrose the magnet from the north pole to the south pole.' When a current is sent through the armature, lines of fdrce'areset up'aroundl the same, in "a direction depending on the direction of the ctrrent, all lines of force that coincide .tending to place themselves parallel to and in the same direction. As the-.magnet26 is stationary, the armature will turn so that its `lines of force willv be parallel to and in the same direction as those in the magnet, hence the movement of said armature and its target 17, will move either to the right or to the left, when the magnet is energized in the proper direction.

`To more particularly bring outthe features of this invention, Figs. 3 and 4 of the' drawings, illustrates and shows avconst-ruction of assembled mechanism, to indicate conditions for instance of a mail box, that is to show whether or not it, contains or does not contain mail matter. In this instance a. circular base of insulating material, such, as 13, is employed, and mounted removably to protectand cover the mechanism carried thereby, is a cylindrical cover 14, the said cover being provided with a 90 aperture therein, the purpose of ,which will presently appear.

As shownthe wires 8 and 8 lead through 4this block and are connected to theposts 7 and 7b respectively of the brushes 7 and 7 respectively, the said brushes being mounted' upon the base 13 as clearly indicated in Figs. 3 and 4: of the drawings. -Rotntably mounted upon the` base, is the armature (i, which as before set forth is provided with the metal segment 6 and with the insulating segment 6, and carries rotatably therewith, the coil 3, which carries. at its top the bracket 1G, to which is connected the curved strip or 180o segmental target 17, the said target 17, beingvdividcd centrally as at- 18 constitute the north and south into the 90 segments or indicators `19 and 20,' respectively; the aperture in the top of the cover 14; being of sufiicient Size, to exhibit the indications of either one of the portions 19 or 20 through the cover, so that as the said target is moved to right or left, as indicated in Fig. 3 of the drawings, one or the other of said indicators will ,bein visual view.

The coil `3 and armature 6 are properly supported upon the lower stationary pivot 30, and the upperadjustable screw 22 carried by the bracket or plate 21. This plate 21 is carried by the brackets or plates 23 and 24, one of which also provides a limiti ing means for the bracket 16 to prevent the due to the flow of current through the coil- 3 as illustrated in the diagram'Figs. 1 and 2,

will be halted in its movement by the' `bracket 16 and the respective lates 24, and when the current has been shi ted to How 4lneither one of the directions, said direction being an opposite direction to that initially imparted to thetarget, so that thc said tar` get is permitted a tially 900.

l Secured to the base 18 by means of the brackets 23 and 24, and the set screws 9.5, is the horseshoe shy. ed permanent magnet 26, which is provided) with the oppositely disposed segmental portions 27 and 27', which poles of the movement of substansaid permanent'magnet 26.

By this construction as now set forth, it will be seen that as the current passes as indicated by the arrows in Fig. 1 of the drawings, the armature 6 will be moved to the position as shown in Fig. 3, the target being stopped inits movement by the contact of the bracket 16 with the bracket or plate 24:. This movement is produced by closing the switch 10, the current flowing from the center of the battery at 1 through the conductor 2y to the coil 3, and the conductor 4 to the commntator connection 5, this action 4moving the target from the right to left as viewed in Fig. 3,'as the current is caused to iow from said vcommutatcr` connection 5 through the segment G to the brush 7, thel conductor 8, terminal 9, switch 10 and conductor 11 to thepther side of the battery.

Should the switch be moved so that the 4switch 10 as shown in Fig. Q will'engage` the 'terminal 9', at which time thc current will fiow in the opposite direction to rotate lthe armature or target' from the position as shown in Fig. 2 to the position as shown in Figs. 1 and 3, where the black portion ot the target will assume the position of the lighter portion, as shown. in ,ig. 3, the bracket 1u abutting the plate 24 at the right p and being stopped in its movement by such plate similarly to the stoppage when moved in: the 'reverse direction. The I'circuit which is closed when the swit'cl'i lObridges the Y terminal 9 is as follows: the batteries, conn doctor 1Q, switch 10, conductor S', the brush 7", the armature segment 6, the vvcommutator connection :3, the conductor Il, the coils and the conductor 2 to the central portion ot', the battery. By this means it will be seen that the liow ot' the current relatively to the coil l is reversed, without ati'ecting the iiow ot current in the batteries, this action servingr to rotate the armature and consequently the target 18, 'to the lettl as viewed in Fig. 3 when the switch i0 closethor tothe right when the switch 10 ,is closed.

'it will. thus be seen that the assembled device, or the construction as illustrated in Figs. il and et et the drawings, consists of a magnet and an armature, carrying a target, the working parts being inclosed by a cover provided with an aperture through which is shown 90o ot the target, and assaid target consists ot a segment et 180, only one halt ot the same is exposed to View at a time, the target remaining at rest with either halt showing through the opening in the cover. i

The armature being equipped with a commutator which consists of one 180 segment n'ieunted so that only one ot the pair of the brushes T or 'T' is in contact with the ,saine at a time, the armature winding,I being connected to the segment, and the other end to the trame, it is evident that the brush when connected to the positive terminal batteries, will cause the target to more in one direction, and while connected. to the negative terminals will canse the target to move in the opposite direction. l'hus when the battery current. is sent through the armature troni the trame connection to the negative brush, the armature being,r in contact 'with the negative brush, will turn through an angle ot' 903, so as to bring; that part ot the target before invisible to View through the aperture in the hood or coter 14.

The device is so constructed that when the armature has 'passed through an angle about .750, the contact between the brush and the l`eomniutatoi.' is broken, stopping; the tlow y'of the l'iattery current, this occurringrl in either direction ot movement of the said :ii-nurture and its segmental tar?` t. V this means it is evident that any remote piece oi' apparatus, such as an oil switch, circuit bren Irc1', or an indicator for indicatinnvariouspurposes may be connected so as to A through this ai'niaratus the eondi anni'. utu this particular instance irrirhe afsenihled device used in connection with, letter boxes, in apart-ment the box .is empty.

houses tor instance, should a letter be in.- serted in 'the box, the indicator will be tuated causing.,Y the target-to indicate a word that will indicate. to the parties whether there ismlalin the bont, and when th'c'door fot the bei; is mencdqto remove the mail, the

indicator will be returned to indicate that 1What is claimed is: e

1. The conibination witha series oit cells, two conductors, one leading from each end cell thereof, a conductor leading from the center cell ot said series, and a two point switch for connectintgone of the two first named conductors at a time to the center conductor to close one circuitxat a time, ot' a permanent magnet, an armature capable et'oscillatory movement disposed between the poles ot said magnet and connected with the' center conductor, a commntator having a contact portion carried by the umature two brushes one connected to each ot the twoA points of the switch, and adapted to con: tact-alternately the contact portion 'ot the commutator, and a target carried by said armature, whereby said switch connects the brushes alternately with the respective two conductors and determines the direction of tlow ot the current from the cells to the armature, and whereby the circuit through 'the armature is alternately made `by Way ot the contact segment of the commutator and one of the brushes.

Q. The combination with a battery, a conductor leading from the center cell thereof, two auxiliary conductors, one leading from each end cell thereof, and a two point switch haring its separate members connected to the respective auxiliary conductors and con* tacts engagealiile by the respective members, ot an indicating mcchauisnr comprising two brushes, each one of said brushes being connected to itsrespective contact of the switch, an armatln having' a coil and a commutator, the contact portion ot' the commutator beine; a 180O segment7 the contact portion ot said commutator heine' connected to the center conductor and for alternate Contact with said brushes the coil of the armature being interposed in. the center conductor, an indicating device carriedtiyssaid armature, and a permanent magnet, the poles ot which are disposed diametrically opposite to said armature, whereby the switch may be manipulated to alternately connect the brushes with the cells to cause theI yarmature to beoscillated.

3. "l he comliination with a battery, a conlurtor leading,` from the center cell thereof, two auxiliary conductors, one leading from each end cell ther-cot, and a two point switch having its separate members connected to the respective auxiliary conductors and contacts engageable by the respective members, ot an indicating mechanism, comprising two brushes, each one of'seid brushes being connected to its respective contact of the switch,

interposed in the center conductor, an indicating device :carried by said armature,l

and a permanent magnet having its'poles struddling but out of Contact lwith said armature, whereby the switch may be manipulated to alternately connect the brushes with the cells to cause the armatureto be oscillated.

4. The combination with a battery, a' main conductor led from the YCenter cell thereof, and two auxiliary conductors led from the respective enel cells of the battery, and a reversing switch having separate members permanently connected to the respective auxiliary conductors and contacts engagenected' to the main conductor, two brushes in vContact with said commutntor and elter- 'each brush beingr connected to its contact, seid reversing switch connecting the brushes alternately with a ortion of the battery, an arm carried by tiie upper portion of the armature, and a 180o segmental target carried by said arm.

In testimony that I claim .the foregoing as my own, I have hereto elixed my signature in the presence of two Witnesses.

ALLEN BARBER HAZARD.

Witnesses RICHARD E. HUMPSTON, ANTHONY A. Pennen;

mately engaging the contact portion thereof, 

